//--------------------------------------------------------------------------------------
// File: WICTextureLoader11.h
//
// Function for loading a WIC image and creating a Direct3D runtime texture for it
// (auto-generating mipmaps if possible)
//
// Note: Assumes application has already called CoInitializeEx
//
// Warning: CreateWICTexture* functions are not thread-safe if given a d3dContext instance for
//          auto-gen mipmap support.
//
// Note these functions are useful for images created as simple 2D textures. For
// more complex resources, DDSTextureLoader is an excellent light-weight runtime loader.
// For a full-featured DDS file reader, writer, and texture processing pipeline see
// the 'Texconv' sample and the 'DirectXTex' library.
//
// Copyright (c) Microsoft Corporation.
// Licensed under the MIT License.
//
// http://go.microsoft.com/fwlink/?LinkId=248926
// http://go.microsoft.com/fwlink/?LinkId=248929
//--------------------------------------------------------------------------------------

#pragma once

#include <d3d11_1.h>

#include <cstddef>
#include <cstdint>

namespace DirectX
{
#ifndef WIC_LOADER_FLAGS_DEFINED
#define WIC_LOADER_FLAGS_DEFINED
	enum WIC_LOADER_FLAGS : uint32_t
	{
		WIC_LOADER_DEFAULT = 0,
		WIC_LOADER_FORCE_SRGB = 0x1,
		WIC_LOADER_IGNORE_SRGB = 0x2,
		WIC_LOADER_SRGB_DEFAULT = 0x4,
		WIC_LOADER_FIT_POW2 = 0x20,
		WIC_LOADER_MAKE_SQUARE = 0x40,
		WIC_LOADER_FORCE_RGBA32 = 0x80,
	};

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-dynamic-exception-spec"
#endif

	DEFINE_ENUM_FLAG_OPERATORS(WIC_LOADER_FLAGS);

#ifdef __clang__
#pragma clang diagnostic pop
#endif
#endif

	// Standard version
	HRESULT CreateWICTextureFromMemory(
		_In_ ID3D11Device* d3dDevice,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0) noexcept;

	HRESULT CreateWICTextureFromFile(
		_In_ ID3D11Device* d3dDevice,
		_In_z_ const wchar_t* szFileName,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0) noexcept;

	// Standard version with optional auto-gen mipmap support
	HRESULT CreateWICTextureFromMemory(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0) noexcept;

	HRESULT CreateWICTextureFromFile(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_z_ const wchar_t* szFileName,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView,
		_In_ size_t maxsize = 0) noexcept;

	// Extended version
	HRESULT CreateWICTextureFromMemoryEx(
		_In_ ID3D11Device* d3dDevice,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ WIC_LOADER_FLAGS loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;

	HRESULT CreateWICTextureFromFileEx(
		_In_ ID3D11Device* d3dDevice,
		_In_z_ const wchar_t* szFileName,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ WIC_LOADER_FLAGS loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;

	// Extended version with optional auto-gen mipmap support
	HRESULT CreateWICTextureFromMemoryEx(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_reads_bytes_(wicDataSize) const uint8_t* wicData,
		_In_ size_t wicDataSize,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ WIC_LOADER_FLAGS loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;

	HRESULT CreateWICTextureFromFileEx(
		_In_ ID3D11Device* d3dDevice,
		_In_opt_ ID3D11DeviceContext* d3dContext,
		_In_z_ const wchar_t* szFileName,
		_In_ size_t maxsize,
		_In_ D3D11_USAGE usage,
		_In_ unsigned int bindFlags,
		_In_ unsigned int cpuAccessFlags,
		_In_ unsigned int miscFlags,
		_In_ WIC_LOADER_FLAGS loadFlags,
		_Outptr_opt_ ID3D11Resource** texture,
		_Outptr_opt_ ID3D11ShaderResourceView** textureView) noexcept;
}